Garage-door opening and closing device



Patented ug. i8, 1925.

rpt

GARAGE-DOOR O'PENING-AND CLOSING DEVICE.

Application filed November G, 1924. Serial No. 748,239.

To al? 107mm t may concern.'

Be it known that l, Hanny WILLIAM DUDLEY ARMSTRONG, a subject ot' theKing' of Great Britain` and a resident of thecity of Toronto, in thecounty of York, in the Province oil Ontario, Canada, have inventedcertain new and use-ful Improvements in Garage-Door Opening and ClosingDevices, of which the following` is the specification.

My invention relates to improvements in garage door opening` and closingdevices,

and the object ot the invention is to devise.

simple means which is operated by the weight of an automobile, t'O-rautomatically ope-ning the garage doors as the automolfiile approachesthem when entering the `garage, and automatically closing;- such doorshehind the automobile as it passes into the garage, and it consistsessentially ot the arangement and construction ot parts hereinafter moreparticularly explained.

Fig. 1 is a sectional perspective view of av fragmentary portion of agarage showing the run-way there-into, garage doors, and my operating'mechanism therefor, looking' towards the inside oi the doors.

Fig. 2 is a longitudinal sectional view through my device.

Fig. 3 is a sectional plan vie-w on line 3 3, Fig. 2.

Fig. 4 is an enlarged detail view of my garage door operating`mechanism.

In the drawings like characters ot reference indicate correspondingparts in each figure.

1 indi fates a portion ota garante` tloor. 2 and 3 are ruu-\\.'aysapproaching,l the garae'e, and l is an inclined run-way portion whichinclines upwardly as indicated at -'l from the ends ot' the run-ways 2and 3 to the hottom of the `garage doors, and from thence inclinesdownward inwardly of the garage, as indicated at 4, to the level ot' theHoor 1, as indicated.

5 is the frame of the door, provided with a top plate or lintel 6. p

7 is a transverse channel-way formed in the run-Way 4 at each side ot'the door frame 5.

8 and 9 are channel-ways formed in the inclined portion 4X of therun-way portion 4, Such channel-ways extending from the ends of therun-ways 2 and 3 to the transverse channel 7, as clearly indicated inFig. 2.

10 andll are channel-Ways extending` in- `clined port-ion et* of therun-way portion fl wardly from the transverse channel 7 to the end Ot'the inclined portion Ll@ of the run-way portion 4. "Hiwit" 12 and 13 arethe doors of. ,tlwigarage which are formed integral at ,ttl outer edgeswith cylindricalmpost members 14, which are suitably jouriialled intheir upper and lower ends respectively in theI top plate G and in therun-way portion 4. t

15 is a transverse bar located in the transverse channel 7 andpreferably invertedT shaped in cross section and provided at each endwith an upward extension .16.

The vertical-flange 15X of the T-shapeddiar is provided at each sidewth` a pair of luejs 17 and 18 respectively loca-ted in proXiu'iit-`\',v to each end ot the bar, and in align with the channel-ways 8 and9, and 10 and 11.

19 and 2O are long tread plates which rest at their outer ends on thebottom of the channel-ways S and 9 and normally incline up ward on alevel with the upper edge ot' such channel-ways or with the surface ot'the inand are. pivotally mounted at their opposite ends between the lugs18.

21 and 22- are short tread pla-tes which rest at one end on the bottomof the run ways 10 and 11, that is, at the ends remote from the garagedoors,` and arel pivotally` mounted at their oppositel ends between the.lugs 17 of the bar 15.

23 ar y pulleys which are mounted upon the vertical members oi the. doorframe 15 at each side of the door.

as indicated at 25, in proximity tothe tree.

edge of the door, the opposite end-ot the rope passing over the pulley23 and downward,- the lower end being;` connected by a suitable linkconnection 26 to each upwart.- ly extending portion A16 `fof the bar 15.

27 is a pulley'mounted upon the plate 6 at each side o the door frame.

y28 is a cord extending over each pulley 27 one end of which. dependsfreely and carries a Weight 29.

The opposite` end of the cord depends downward and is connected at 30 tothe oord 24. v

v31 is a pulley which is mounted upon each vertical member; of the doorframe 5. 32 is a cord connected at its upper end to the cord 28, asindicated at 33. The opposite end of ne co1 d und i f` i nuerinernutclyot its width :is

"iucpul ports inbrieliy dey, y `urbesthe. grunge, gevel upon tnerun-Wore @l 1T A, me inclined tread platee n ere gludimlly depressed ofih.; automobile the "el long iitiulinullyof the tlu depreeeion of theund 2() the transverse bnr Lrd, the ends ot the bur bnr horizontalposition or p .ulinnl :alignment with rn'c'seed trend olntc-S l) and20,. porton this operation u downward pull exeiuxd upon the cords 24e,which rte pull round the door ,post M, round el) they' have p d to thefront Side ,ot door, end therefore exert an outward pull upon the freeportion of the door, rswuggiiig it outward to the open position indicateby dotted lines in Fig. 3. The 'tion 'or pull. upon th corde :2. pullupon the cords 28 ee, 'rying tl "lits 29 upward, the weight being atthe. lin" or its upward movement when tre-ud tes i9 und 2O and 21 und 22depressed :o the ullest extent. it will elec be. nude od the.L when theweights 2 effe carrie/.l upward, theotlier oi? the onine cord .'28 towhich the is Glied depending troni 'the op Y the pulley 2?' to theWeight, i und therefore pern'lits u to occur in t c coi-:l 32,permitting f evi/'ing ot 'the doors fre before .nobile 'travels into thet" the l eed plates 2l and 22, t, s :ire relieved of the weight 'tieautomobile, :allowing the bar l5 to be carried iqnvurtl. again to itsnormal position by the weights 28 which descend Aand at the eznne tin/ieexert e pullupon the cords F32, pulling the doors to the 'closedposition, the cords Q4 being slackened olf by Ineens ol the cross bar lascending during` thisoperetion. lt will olf course be understood thatthe of this operation takes place when the automobile is leaving thelli-oni 'this description it will be seen that I have devised n verysimple device tor opening und closing garage doo s, which 'fill lie.absolutely automatic, being` operable by the weight olI the :uitoinobileas it travels into thel garage.

Whut ,l cluiin my invention is:

In a` garage door opening` and closing device, the combination with thedoor frame conuln'ising` vertical Side Inen'ibers and horizontal iopineinbersand 'substructure upon which the irznne is supported, o1 :iparir ol cylindrical door posts journalled at their upper ends in theiii-unie und at their lower endsin the substructure, a door carried byeuch of vsaid cylindrical door posts, n cross bar 'guided vertically inthe substructure beneath the level of the doors, a pulley mounted oneuch vertical of the door trame, :L cord connected to each end of thecross bnr and pzissiivbupward over the aforesaid pulleys around thecylindrical door posts und connected et their opposite ends to the outer'lince ot' euch door, a4 Weight holding;r cord also connected at eachend of the cross bur, a pulley mounted upon the horizontal ineniber ofthe door freine at 'each end thereof over each of which one ol' theWeight holding cords pass, e Weight secured :it the free depending endof each of 'such eord's, und e, cord connected to the Weight holdingcord intermediate its connection to the cross nur und itscerrying'pulley, e guide pulley oleo carried by each vertical of the door traineund around which the last mentioned cord posees to it's pointJ of attachinfanttothe inner face of each garage door,

und tread plates hingedly connected to each ot the cross bur over whichthe Wheels ont the ziiutoniobile are adapted to travel as the automobilepasses into and out of the garage.

HARRY WILLIAM DUDLEY ARMSTRONG.

